02/20002-36 DocuPrint N2125RAP 37 , RAP 38Initial IssueStatus Indicator Repair Analysis ProceduresRAP 37 Tray Motor Assembly Checkout ProcedureProcedureNOTE: Tray 1 interlocks the 24VDC supply to the Tray 1 Size PWB, Tray 1 Feeder PWB, Tray 2and Tray 3. Tray 2 interlocks the 24VDC supply to the Tray 2 Size PWB, Tray 2 Feeder PWB,and Tray 3. Tray 3 interlocks the 24VDC supply to the Tray 3 Size PWB and the Tray 3 FeederPWB.Switch the printer power off. Remove the Paper Tray to be tested. Switch the printer power on.Measure the voltage from the lower contact of the Paper Feeder Socket to frame ground. Thevoltage is +24 VDC.Y NGo to RAP 2.On the left side of the paper tray, measure the motor winding resistance from the middle con-tact to the lower contact of the Paper Feeder Connector. The resistance reading is between110 - 130 ohms.Y NDisconnect J673 from the 3 pin Paper Feeder Connector. Measure resistance betweenpins 1 and 4. The resistance reading is between 110 - 130 ohms.Y NReplace the Motor Assembly (REP 2.4).Replace Paper Feeder Connector (PL 2.2).Check the Paper Tray for damage, contamination, binding, misalignment or obstruction. Allcomponents are clean, connected properly, aligned properly and without damage.Y NRepair/replace as necessary.Replace the Motor Assembly (REP 2.4).RAP 38 Registration ClutchProcedureEnter Diagnostics and select Component Test. Scroll to Confirm Reg. Clutch and press Enter.You can hear the Registration Clutch energize.Y NSwitch the printer power off. Remove the Left Interface Cover (REP 1.1), Left Cover (REP1.2), and the Left Plate Assembly (REP 1.11). Disconnect P/J23 on the Print Engine Con-troller PWB. Measure the resistance between pins 6 and 9 on the disconnected plug.The resistance is approximately 145 to 165 ohms.Y NRemove the Front Cover (REP 1.6) and the Left Front Cover (REP 1.7). DisconnectP/J43 from the Connector PWB. Measure the resistance between pins 1 and 2 onthe disconnected plug. The resistance is approximately 145 to 165 ohms.Y NReplace the Registration Clutch (REP 5.5).Replace the Connector PWB (REP 9.7).Reconnect P/J23. Switch the printer power on. Check the voltage between P/J23 pin 6and frame ground. The voltage is +24VDC.Y NReplace the Print Engine Controller PWB (REP 9.3).Enter Diagnostics and select Component Test. Scroll to Confirm Reg. Clutch. Check thevoltage between P/J23 pin 9 and frame ground. Press Enter. The voltage drops from+24VDC to 0.0VDC.Y NReplace the Print Engine Controller PWB (REP 9.3).Replace the Registration Clutch (REP 5.5)Switch the printer power off. Open the Front Cover and remove the Print Cartridge. With theFront Cover open, cheat the Front Cover Interlock. Enter Diagnostics and select ComponentTest. Scroll to Main Motor and press Enter. Scroll to Confirm Reg. Clutch and press Enter.The Registration Rolls rotate smoothly without stalling or jerking.Y NReplace the Registration Clutch (REP 5.5) or Registration Rolls (REP 5.6).Problem Solved.
